package com.aratek.mqtt.demo.config;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.core.MessageProducer;
import org.springframework.integration.mqtt.core.MqttPahoClientFactory;
import org.springframework.integration.mqtt.inbound.MqttPahoMessageDrivenChannelAdapter;
import org.springframework.integration.mqtt.support.DefaultPahoMessageConverter;
import org.springframework.messaging.MessageChannel;
import org.springframework.messaging.MessageHandler;

/**
 * @author: ChenJie
 * @date 2018/8/21
 */
@Configuration
@Slf4j
public class MqttInboundConfiguration {
    @Autowired
    private MqttProperties mqttProperties;
    @Bean
    public MessageChannel mqttInputChannel() {
        return new DirectChannel();
    }
    @Bean
    public MessageProducer inbound(MqttPahoClientFactory mqttPahoClientFactory) {
        String[] inboundTopics = mqttProperties.getInbound().getTopics().split(",");
        MqttPahoMessageDrivenChannelAdapter adapter =
                new MqttPahoMessageDrivenChannelAdapter(mqttProperties.getInbound().getUrl(), mqttProperties.getInbound().getClientId(),
                        mqttPahoClientFactory,inboundTopics);
        adapter.setCompletionTimeout(5000);
        adapter.setConverter(new DefaultPahoMessageConverter());
        adapter.setQos(1);
        adapter.setOutputChannel(mqttInputChannel());
        return adapter;
    }

    @Bean
    @ServiceActivator(inputChannel = "mqttInputChannel")
    public MessageHandler handler() {
        return message -> log.info("收到消息："+message.getPayload());
    }
}